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Related Experiment Videos

Decentration after refractive surgery.

P Vinciguerra1, F I Camesasca

  • 1Department of Ophthalmology, Instituto Clinico Humanitas, Milano, Italy. paolo.vinguerra@humanitas.it

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|April 24, 2001
PubMed
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Accurate corneal topography diagnosis is key to identifying true decentration after refractive surgery. Most cases benefit from central cornea smoothing, not recentering.

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Topography

Background:

  • Suspected decentration after refractive surgery requires careful evaluation.
  • Distinguishing true decentration from other topographical anomalies is crucial for effective treatment.

Purpose of the Study:

  • To identify factors for evaluating suspected decentration following refractive surgery.
  • To differentiate true decentration from other post-surgical complications.

Main Methods:

  • Reviewed 148 cases referred for recentering procedures.
  • Evaluated pupil position, corneal topography, and corneal curvature gradients.

Main Results:

  • Only 3.4% of eyes showed true decentration.

Related Experiment Videos

  • High dioptric gradient with focal scarring (72.3%) was the most common finding.
  • Eye drifting during treatment (18.9%) and central islands (5.4%) were also observed.

    • Conclusions:

    • Proper corneal topographical diagnosis minimizes misdiagnosis of decentration.
    • Central cornea smoothing is an effective solution for many cases.
    • Preventative measures include patient positioning, managing high myopes, and pre-operative assessments.